PythonCourse/Section_04/assignment_08.py at master · JobReadyProgrammer/PythonCourse · GitHub

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# Assignment 8

"""

Return the sum of the numbers in the list, except ignore sections of
numbers starting with a 7 and extending to the next 8
(every 7 will be followed by at least one 8).
Return 0 for no numbers.

EXAMPLE:
sum78([1, 2, 2]) → 5
sum78([1, 2, 2, 7, 99, 99, 8]) → 5
sum78([1, 1, 7, 8, 2]) → 4

"""

#Your Code Below:


print(sum78([1, 2, 2])) #→ 5
print(sum78([1, 2, 2, 7, 99, 99, 8])) #→ 5
print(sum78([1, 1, 7, 8, 2])) #→ 4


# Solution:

# def sum78(nums):
#     sum = 0
#     inRange = False
#
#     for i in range(len(nums)):
#         if nums[i] == 7:
#             inRange = True
#
#         if not inRange:
#             sum += nums[i]
#
#         if inRange and nums[i] == 8:
#             inRange = False
#
#     return sum